John 6:30
King James Version
“They said therefore unto him, What sign shewest thou then, that we may see, and believe thee? what dost thou work?”
Context
27Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed.
28Then said they unto him, What shall we do, that we might work the works of God?
29Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.
30They said therefore unto him, What sign shewest thou then, that we may see, and believe thee? what dost thou work?
31Our fathers did eat manna in the desert; as it is written, He gave them bread from heaven to eat.
32Then Jesus said unto them, Verily, verily, I say unto you, Moses gave you not that bread from heaven; but my Father giveth you the true bread from heaven.
33For the bread of God is he which cometh down from heaven, and giveth life unto the world.